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--- doc:appunti:hardware:oukitel_g2 [2025/08/29 12:26] – niccolo
+++ doc:appunti:hardware:oukitel_g2 [2026/11/01 08:42] (current) – [Best Flashing Tool: highly suspect malware] niccolo
@@ Line 1: / Line 1: @@
 ====== The Oukitel G2 ======
+===== Specs =====
+^ Screen             | IPS LCD 6.0 inches, 92.7 cm2  |
+^ Size               | 166 x 81.1 x 15.1 mm  |
+^ Weight             | 373 g  |
+^ Screen resolution  | 576 x 1156 pixels  |
+^ OS                 | Android 14  |
+^ Chipset            | Unisoc T606  |
+^ CPU                | Octa-core (2x1.6 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)  |
+^ GPU                | Mali-G57 MP1  |
+===== Rooting not longer allowed =====
+<code>
+Dear Oukitel,
+I recently purchased a G2 smartphone, which I intend to use as
+a GPS navigation system on a fleet of motorbikes.
+To install some custom procedures, I need to root the device,
+as I did with previous Oukitel smartphones (e.g. the WP12 model).
+Unfortunately the G2 is based on the Unisoc chip and unlocking
+the bootloader requires a signed file, but I don't have the key
+to make it.
+Please, can you provide the instructions to root the G2 model,
+as you provided for the Android 13 phones? (as seen here:
+https://oukitel.uk/blogs/news/how-to-root-android-13).
+Thank you.
+</code>
+<code>
+From: "contact@oukitel.com" <contact@oukitel.com>
+Date: Thu, 28 Aug 2025 16:28:15 +0800 (CST)
+Subject: Re: New customer message on August 27, 2025 at 8:37 pm
+Dear customer,
+Thank you for choosing our OUKITEL products and services,
+we are deeply honored.
+We are sorry to tell you that our phones don't support
+root now, so we can't provide you with similar method.
+Best regards,
+From OUKITEL
+</code>
+===== Cannot fastboot from custom image =====
+**[[https://www.hovatek.com/forum/thread-48912.html|Oukitel based on Unisoc chip: is it possibile to fastboot boot from a custom image?]]**
+I tried to root an **Oukitel G2** smartphone, which is based on the Unisoc T606 chip. I tried the procedure based on the script **signidentifier_unlockbootloader.sh**, which uses the identifier token provided by fastboot and an Oukitel leaked RSA key:
+<code>
+./signidentifier_unlockbootloader.sh 473230303030303030303036353835 rsa4096_vbmeta.pem signature.bin
+</code>
+Unfortunately flashing the **signature.bin** file obtained in that way does not work (I used the required modified **fastboot** binary):
+<code>
+./fastboot flashing unlock_bootloader signature.bin
+downloading 'unlock_message'...
+OKAY [  0.001s]
+unlocking bootloader...
+FAILED (remote: Unlock bootloader fail.)
+</code>
+May be this phone is locked with a different **rsa4096_vbmeta.pem** key.
+Does anyone know if it is possibile to boot using fastboot and a custom kernel image?
+I extracted the **boot-gki.img** file from the ROM image, then I patched it using Magisk 26.4 (patching seems successfully), ten in bootloader mode I executed:
+<code>
+fastboot boot magisk_patched-26400_Y9t93.img
+</code>
+But it seems that the phone starts with the stock kernel image, because Magisk says it is not installed and root is not available.
+  * Yes, I enabled the Developer options => OEM unlocking
+  * Yes, I tried the standard fastboot flashing unlock, fastboot oem unlocking, etc.
+===== Special boot menus =====
 To enter the **Recovery** menu:
@@ Line 15: / Line 101: @@
 {{.:oukitel-g2:oukitel-g2-fastbootd-menu.jpg?320|Oukitel G2 fastbootd menu}}
+===== Best Flashing Tool: highly suspect malware =====
+Online, you can find posts discussing a piece of software called **BFT Tool** (**[[https://bestflashtool.com/|Best Flashing Tool]]**, by Miracle Team), which supposedly can unlock the bootloaders of smartphones equipped with Unisoc (formerly known as Spreadtrum) chips.
+The download links all point to anonymous URLs from MediaFire or MEGA.nz, and the various instructions tell you to disable your antivirus software to complete the installation — all of which are extremely alarming signs.
+I decided anyway to test the program by installing it on a "sacrificial" Windows PC. In my assessment, Best Flashing Tool falls somewhere between being **unreliable software** and **outright malware or a scam**.
+These are the md5sums of the 1.6 and 1.7 installer files:
+<code>
+# Malware!
+c075f8660444f866c05b5b7c902e2882  BFTSetup1.6.rar
+ba2afe11365af9113ad8b6119d7c6efa  BFTSetup1.7.rar
+5070218bc01ebd9b3dc3d285c63e0bf0  BFTSetup1.7.exe
+</code>
+Every antivirus program flags it as malicious (e.g., Avast: **Win32:MalwareX-gen**, BitDefender: **Gen:Variant.Yogi.11731**, etc.). If you proceed with the installation anyway, the program refuses to launch, displaying the error: "Failed to check for new version."
+{{.:oukitel-g2:bft-error.png?direct&320|Best Flashing Tool malware not working}}
+The same result was obtained with version 1.6 and 1.7 on Windows 10 Pro.
+===== Web References =====
+  * **[[https://github.com/nethgraves/Unisoc_UBL]]**